function varargout = gui(varargin)
% GUI M-file for gui.fig
%      GUI, by itself, creates a new GUI or raises the existing
%      singleton*.
%
%      H = GUI returns the handle to a new GUI or the handle to
%      the existing singleton*.
%
%      GUI('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUI.M with the given input arguments.
%
%      GUI('Property','Value',...) creates a new GUI or raises the
%      existing singleton*.  Starting from the left, property value pairs
%      are
%      applied to the GUI before gui_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to gui_OpeningFcn via varargin.
%
%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one
%      instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES

% Copyright 2002-2003 The MathWorks, Inc.

% Edit the above text to modify the response to help gui

% Last Modified by GUIDE v2.5 15-Mar-2011 22:45:24

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @gui_OpeningFcn, ...
                   'gui_OutputFcn',  @gui_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin && ischar(varargin{1})
    gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
    gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT


% --- Executes just before gui is made visible.
function gui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to gui (see VARARGIN)

path = regexp(pwd,'[^\\]*','match');
handles.gui_index=length(path);

%saving pwd to directory structure
for i=1:handles.gui_index
    handles.gui_dir(i).name=strcat(path(i),'\');
end

% Choose default command line output for gui
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

%Loads the current/specified directory
if nargin == 3,
    initial_dir = pwd;
elseif nargin == 4 & exist(varargin{1},'dir')
    initial_dir = varargin{1};
else
    errordlg('Input argument must be a valid directory','Input Argument Error!')
    return
end
% Populate the listbox
load_listbox(initial_dir,handles)

% UIWAIT makes gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = gui_OutputFcn(hObject, eventdata, handles) 
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Get default command line output from handles structure
varargout{1} = handles.output;


% --- Executes on selection change in listbox2.
function listbox2_Callback(hObject, eventdata, handles)
% hObject    handle to listbox2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = get(hObject,'String') returns listbox2 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from listbox2

%Deactivating segment and find race
set(handles.pushbutton2,'Enable','off')
set(handles.text1,'String','')

get(handles.figure1,'SelectionType');
if strcmp(get(handles.figure1,'SelectionType'),'open')
	index_selected = get(handles.listbox2,'Value');
	file_list = get(handles.listbox2,'String');	
	filename = file_list{index_selected};
    directory='';
	if  handles.is_dir(handles.sorted_index(index_selected))
        if strcmp(filename,'..')
            handles.gui_dir(handles.gui_index).name='';
            handles.gui_index= handles.gui_index-1;
        elseif strcmp(filename,'.')
        else
            handles.gui_index=handles.gui_index+1;
            handles.gui_dir(handles.gui_index).name=strcat(filename,'\');
        end
        for i=1:handles.gui_index
            directory=strcat(directory,handles.gui_dir(i).name);
        end
		load_listbox(directory,handles)
    else
       for i=1:handles.gui_index
            directory=strcat(directory,handles.gui_dir(i).name);
       end
       file=char(strcat(directory,filename));
       file
	   [path,name,ext,ver] = fileparts(file);
	   switch ext
           case '.jpg'
               imview(file)
           case '.JPG'
               imview(file)    
           case '.png'
               imview(file)
           case '.jpeg'
               imview(file)
           case '.fig'
               guide (file)
           otherwise 
               try
                   open(strcat(directory,'\',filename))
               catch
                   errordlg(lasterr,'File Type Error','modal')
               end
       end	
   end
end


% --- Executes during object creation, after setting all properties.
function listbox2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to listbox2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: listbox controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called

% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end


% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

'Finding race...'

index_selected = get(handles.listbox2,'Value');
file_list = get(handles.listbox2,'String');
filename = file_list{index_selected};
directory='';
for i=1:handles.gui_index
    directory=strcat(directory,handles.gui_dir(i).name);
end
filename=char(strcat(directory,filename));

%Find race
try
    Irgb=imread(filename);
    [SkinIndexRow,SkinIndexCol]=skin_range(Irgb);
    
    handles.seg_out=segmentation(Irgb,SkinIndexRow,SkinIndexCol);
    guidata(hObject,handles)
    group= colorfeaturegrouping(handles.seg_out);
    cmatrix=find_cooccurencematrix(handles.seg_out);
    race= cal_entropy(cmatrix,group);

catch
    errordlg(lasterr,'File Type Error','modal')
end    
    set(handles.text1,'String',race)
    set(handles.pushbutton2,'Enable','on')

function load_listbox(dir_path, handles)
dir_struct = dir(char(dir_path));
[sorted_names,sorted_index] = sortrows({dir_struct.name}');
handles.file_names = sorted_names;
handles.is_dir = [dir_struct.isdir];
handles.sorted_index = [sorted_index];
guidata(handles.figure1,handles)
set(handles.listbox2,'String',handles.file_names,'Value',1)


% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
imview(handles.seg_out);


